Home / 12,974,327.36-17,904,043.68-7,172,740.16

Finding the Fourth Proportional to 12,974,327.36, 17,904,043.68 and 7,172,740.16

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Solution

The fourth proportional to 12,974,327.36, 17,904,043.68 and 7,172,740.16 is: 9,898,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974,327.36 : 17,904,043.68 = 7,172,740.16 : x
  2. Step 2: Convert to fraction form
    12,974,327.36/17,904,043.68 = 7,172,740.16/x
  3. Step 3: Cross multiply
    12,974,327.36x = 17,904,043.68 × 7,172,740.16
  4. Step 4: Simplify right side
    12,974,327.36x = 128,421,053,129,930.19
  5. Step 5: Solve for x
    x = 128,421,053,129,930.19/12,974,327.36
  6. Step 6: Final answer
    x = 9,898,089.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.